122-x=40

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Solution for 122-x=40 equation: 


Simplifying
122 + -1x = 40

Solving
122 + -1x = 40

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-122' to each side of the equation.
122 + -122 + -1x = 40 + -122

Combine like terms: 122 + -122 = 0
0 + -1x = 40 + -122
-1x = 40 + -122

Combine like terms: 40 + -122 = -82
-1x = -82

Divide each side by '-1'.
x = 82

Simplifying
x = 82

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